EP3730727B1 - Ensemble coupleur-actionneur pour un système de verrouillage motorisé - Google Patents

Ensemble coupleur-actionneur pour un système de verrouillage motorisé

Info

Publication number
EP3730727B1
EP3730727B1 EP20164900.1A EP20164900A EP3730727B1 EP 3730727 B1 EP3730727 B1 EP 3730727B1 EP 20164900 A EP20164900 A EP 20164900A EP 3730727 B1 EP3730727 B1 EP 3730727B1
Authority
EP
European Patent Office
Prior art keywords
coupled
housing
coupler
actuator assembly
storage compartment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20164900.1A
Other languages
German (de)
English (en)
Other versions
EP3730727A1 (fr
Inventor
Piotr Kulicki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Volvo Car Corp
Original Assignee
Volvo Car Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Volvo Car Corp filed Critical Volvo Car Corp
Publication of EP3730727A1 publication Critical patent/EP3730727A1/fr
Application granted granted Critical
Publication of EP3730727B1 publication Critical patent/EP3730727B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
    • E05B81/16—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators operating on locking elements for locking or unlocking action
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R7/00—Stowing or holding appliances inside vehicle primarily intended for personal property smaller than suit-cases, e.g. travelling articles, or maps
    • B60R7/04—Stowing or holding appliances inside vehicle primarily intended for personal property smaller than suit-cases, e.g. travelling articles, or maps in driver or passenger space, e.g. using racks
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B79/00—Mounting or connecting vehicle locks or parts thereof
    • E05B79/10—Connections between movable lock parts
    • E05B79/12—Connections between movable lock parts using connecting rods
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/02—Power-actuated vehicle locks characterised by the type of actuators used
    • E05B81/04—Electrical
    • E05B81/06—Electrical using rotary motors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/24—Power-actuated vehicle locks characterised by constructional features of the actuator or the power transmission
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/24—Power-actuated vehicle locks characterised by constructional features of the actuator or the power transmission
    • E05B81/26—Output elements
    • E05B81/28—Linearly reciprocating elements
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/24—Power-actuated vehicle locks characterised by constructional features of the actuator or the power transmission
    • E05B81/32—Details of the actuator transmission
    • E05B81/34—Details of the actuator transmission of geared transmissions
    • E05B81/36—Geared sectors, e.g. fan-shaped gears
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/54—Electrical circuits
    • E05B81/64—Monitoring or sensing, e.g. by using switches or sensors
    • E05B81/72—Monitoring or sensing, e.g. by using switches or sensors the lock status, i.e. locked or unlocked condition
    • E05B81/74—Monitoring or sensing, e.g. by using switches or sensors the lock status, i.e. locked or unlocked condition by sensing the state of the actuator
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
    • E05B83/28—Locks for glove compartments, console boxes, fuel inlet covers or the like
    • E05B83/30—Locks for glove compartments, console boxes, fuel inlet covers or the like for glove compartments
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C9/00—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing
    • E05C9/04—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with two sliding bars moved in opposite directions when fastening or unfastening
    • E05C9/041—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with two sliding bars moved in opposite directions when fastening or unfastening with rack and pinion mechanism

Definitions

  • the present invention relates generally to the automotive field. More particularly, the present invention relates to a coupler-actuator assembly for a powered latch system for a storage compartment of a vehicle.
  • a latch system for a storage compartment of a vehicle typically consists of a mechanical, spring-loaded actuation mechanism that serves to open/close a hatch lid with the pull of a handle, push of one or more buttons, rotation of a knob, or the like, thereby releasing/engaging an associated latch mechanism.
  • the use of a plurality of retractable, spring-loaded latch bolts, as described herein, is rather uncommon and has some specific characteristics.
  • such a latch system does not require a spring-loaded coupler, does not perform a return movement after reaching an unlatched position, and retains a clearly-defined unlatched position corresponding to the associated hatch lid being open.
  • EP2848840 discloses an example actuator and CN107227905 discloses an example lockset for an automobile glove box. As such a latch system is rather uncommon, there is no commonly-known powered latch system that exploits these characteristics. This deficiency is therefore remedied by the coupler-actuator assembly of the present disclosure.
  • the coupler-actuator assembly of the present disclosure integrates various functions related to operating a powered latch system in a single module, including: an actuator function - the actuation of the latch assembly to open the hatch lid; a coupler function - the synchronization of the movement of the opposed latch bolts; an illumination activation sensor function - the detection of when the hatch lid is open for the activation of storage compartment illumination; and a power supply timing function - the timing of the power supply needed for operation of the actuator assembly.
  • the coupler-actuator module is coupled to the associated latch modules of the hatch lid of the storage compartment via connecting rods, as described herein.
  • the present invention provides a coupler-actuator assembly for a powered latch system of a hatch lid of a storage compartment of a vehicle, the coupler-actuator assembly including: a housing adapted to be disposed partially or wholly within and coupled to the hatch lid or within the storage compartment; a motor disposed partially or wholly within and coupled to the housing; an actuation mechanism disposed within the housing and coupled to the motor; and one or more slider racks disposed partially or wholly within the housing and coupled to the actuation mechanism.
  • the coupler-actuator assembly may also include one or more connecting rods disposed outside of or partially within the housing and coupled to the one or more slider racks, wherein the one or more connecting rods are adapted to be disposed adjacent to or partially or wholly within the hatch lid or the storage compartment.
  • the coupler-actuator assembly may further include one or more latch assemblies disposed outside of the housing and coupled to the one or more connecting rods, wherein the one or more latch assemblies are adapted to be disposed adjacent to or partially or wholly within and coupled to the hatch lid or the storage compartment, wherein, when actuated, the one or more latch assemblies are adapted to release the hatch lid from/secure the hatch lid to the storage compartment.
  • the coupler-actuator assembly includes a pair of connected slider racks, a pair of opposed connecting rods each coupled to a corresponding one of the pair of connected slider racks within the housing, and a pair of opposed latch assemblies each coupled to a corresponding one of the pair of opposed connecting rods outside of the housing.
  • the actuation mechanism includes: a worm screw coupled to the motor; a worm gear coupled to the worm screw; an actuating gear sector coupled to the worm gear along a common axis; a receiving gear sector adapted to be coupled to the actuating gear sector; and a synchronizing pinion coupled to the receiving gear sector along another common axis and coupled to the one or more slider racks; wherein rotation of the worm screw by the motor rotates the worm gear about the common axis, which rotates the actuating gear sector about the common axis, which selectively rotates the receiving gear sector about the another common axis, which selectively rotates the synchronizing pinion about the another common axis, which selectively translates the one or more slider racks in a direction into/out of the housing.
  • the coupler-actuator assembly further includes a sensor disposed within the housing and operable for sensing an actuation state of the actuation mechanism.
  • the present disclosure provides a hatch lid assembly for a storage compartment of a vehicle, the hatch lid assembly including: a hatch lid; and a coupler-actuator assembly, including: a housing disposed partially or wholly within and coupled to the hatch lid; a motor disposed partially or wholly within and coupled to the housing; an actuation mechanism disposed within the housing and coupled to the motor; and one or more slider racks disposed partially or wholly within the housing and coupled to the actuation mechanism.
  • the coupler-actuator assembly also includes one or more connecting rods disposed outside of or partially within the housing and coupled to the one or more slider racks, wherein the one or more connecting rods are disposed adjacent to or partially or wholly within the hatch lid.
  • the coupler-actuator assembly further includes one or more latch assemblies disposed outside of the housing and coupled to the one or more connecting rods, wherein the one or more latch assemblies are disposed adjacent to or partially or wholly within and coupled to the hatch lid, wherein, when actuated, the one or more latch assemblies are adapted to release the hatch lid from/secure the hatch lid to the storage compartment.
  • the coupler-actuator assembly includes a pair of connected slider racks, a pair of opposed connecting rods each coupled to a corresponding one of the pair of connected slider racks within the housing, and a pair of opposed latch assemblies each coupled to a corresponding one of the pair of opposed connecting rods outside of the housing.
  • the actuation mechanism includes: a worm screw coupled to the motor; a worm gear coupled to the worm screw; an actuating gear sector coupled to the worm gear along a common axis; a receiving gear sector adapted to be coupled to the actuating gear sector; and a synchronizing pinion coupled to the receiving gear sector along another common axis and coupled to the one or more slider racks; wherein rotation of the worm screw by the motor rotates the worm gear about the common axis, which rotates the actuating gear sector about the common axis, which selectively rotates the receiving gear sector about the another common axis, which selectively rotates the synchronizing pinion about the another common axis, which selectively translates the one or more slider racks in a direction into/out of the housing.
  • the coupler-actuator assembly further includes a sensor disposed within the housing and operable for sensing an actuation state of the actuation mechanism.
  • the present disclosure provides a storage compartment assembly for a vehicle, the storage compartment assembly including: a storage compartment; a hatch lid pivotably or removably coupled to the storage compartment; and a coupler-actuator assembly, including: a housing disposed partially or wholly within the storage compartment; a motor disposed partially or wholly within and coupled to the housing; an actuation mechanism disposed within the housing and coupled to the motor; and one or more slider racks disposed partially or wholly within the housing and coupled to the actuation mechanism.
  • the coupler-actuator assembly includes a pair of connected slider racks, a pair of opposed connecting rods each coupled to a corresponding one of the pair of connected slider racks within the housing, and a pair of opposed latch assemblies each coupled to a corresponding one of the pair of opposed connecting rods outside of the housing.
  • the coupler-actuator assembly of the present invention integrates various functions related to operating a powered latch system in a single module, including: an actuator function - the actuation of the latch assembly to open the hatch lid; a coupler function - the synchronization of the movement of the opposed latch bolts; an illumination activation sensor function - the detection of when the hatch lid is open for the activation of storage compartment illumination; and a power supply timing function - the timing of the power supply needed for operation of the actuator assembly.
  • the coupler-actuator module is coupled to the associated latch modules of the hatch lid of the storage compartment via connecting rods, as described herein. It should be noted that the latch modules and connecting rods may be considered part of a broader latch assembly.
  • the coupler-actuator assembly 10 includes a housing 12 that encompasses an actuation mechanism 14.
  • the actuation mechanism 14 is actuated using a direct-current (DC) electric motor 16 or the like coupled to an electronic controller and handle mechanism, button mechanism, knob mechanism, or the like that is selectively actuated by a user to open/close the hatch lid 18 of the associated storage compartment 20.
  • DC direct-current
  • the electronic controller and handle mechanism, button mechanism, knob mechanism, or the like are well known to those of ordinary skill in the art and are not described in greater detail herein.
  • the hatch lid 18 and storage compartment 20 are well known to those of ordinary skill in the art and are not described in greater detail herein.
  • the housing 12 is coupled to either the hatch lid 18 or the storage compartment 20.
  • the housing 12 may be disposed within an interior of the hatch lid 18 or a wall of the storage compartment 20, and especially an upper wall of the storage compartment, with the electronic controller and handle mechanism, button mechanism, knob mechanism, or the like engaging the actuation mechanism 14 through an exterior surface of the hatch lid 18 or the wall of the storage compartment 20.
  • the coupler-actuator assembly 10 utilizes a low-profile design such that minimal thickness is required with respect to the hatch lid 18 and minimal space is occupied within the storage compartment 20, depending on the preferred placement of the coupler-actuator assembly 10.
  • the actuation mechanism 14 is coupled to the associated latch assembly or assemblies 22 via one or more connecting rods 24.
  • FIG. 1 shows a preferred embodiment, with a pair of opposed latch assemblies 22 and connected rods 24 being utilized, although a single latch assembly 22 and connecting rod 24 could also be utilized, as could greater numbers.
  • the connecting rods 24 are substantially rigid structures that transmit translational motion from the actuation mechanism 14 to the latch assemblies 22, although substantially flexible structures could also be used for this purpose, such as pushrods operating in flexible (but constrained) channels. Likewise, the connecting rods 24 could convert this translational motion to rotational motion at the latch assemblies 22 themselves.
  • the latch assemblies 22 consist of devices that take the translational motion (or rotational motion) and use it to retract/deploy latch structures 26 into/onto/from recesses or protruding structures of the hatch lid 18 or the storage compartment 20, such that the hatch lid 18 is selectively released from/secured to the storage compartment or an adjacent structure, as is done conventionally.
  • the latch structures 26 could also be magnetic retention devices, for example.
  • the latch assemblies 22 are coupled to either the hatch lid 18 or the storage compartment 20, coincident with the housing 12.
  • the latch assemblies 22 may also be disposed within an interior of the hatch lid 18 or the wall of the storage compartment 20, and especially an upper wall of the storage compartment, with the latch structures 26 protruding or exposed through the exterior surface of the hatch lid 18 or the wall of the storage compartment 20, where they are selectively mated with a recess r protruding structure associated with the other component.
  • the latch assemblies 22 utilize a low-profile design such that minimal thickness is required with respect to the hatch lid 18 and minimal space is occupied within the storage compartment 20, depending on the preferred placement of the coupler-actuator assembly 10 and the latch assemblies 22.
  • the connecting rods 24 are shown connected to the actuation mechanism 14 using slider racks 28 that protrude from the housing 12. These slider racks 28 could also be disposed entirely within the housing 12, form integral parts of the connecting rods 24, etc., provided that the same functionality results, as described in greater detail herein.
  • the housing 12 includes an upper housing 12a and a lower housing 12b collectively disposed about the actuation mechanism 14.
  • the coupler-actuator assembly 10 employs a simple DC electric motor 16, completely enclosed within the housing 12 in this case.
  • a worm screw 30 is fixed on the shaft of the motor 16 and rotates when the motor 16 is actuated.
  • the worm screw 30 is coupled to a corresponding worm gear 32 disposed on a shaft disposed substantially perpendicular to the worm screw 30.
  • the worm screw 30 and worm gear 32 effectively decrease the rotational speed increase the torque of the motor 16 available to the actuation mechanism 14.
  • An actuating gear sector 34 is disposed on the same shaft as the worm gear 32.
  • the actuating gear sector 34 is only partially-toothed and performs one rotation per opening cycle. It should be noted that all of the components described herein may be manufactured from any suitable substantially rigid material, such as a metallic material, a plastic material, or the like.
  • the actuating gear sector 34 engages a corresponding receiving gear sector 36 when rotated.
  • the receiving gear sector 36 is also only partially-toothed and is fixed on a common shaft with a synchronizing pinion 38.
  • the receiving gear sector/pinion shaft is disposed substantially parallel to the actuating gear sector/worm gear shaft within the housing 12.
  • the receiving gear sector 36 may be keyed and fitted on a corresponding keyed portion of the pinion 38.
  • the pinion 38 also includes teeth at its center portion that engage corresponding teeth of a pair of slider racks 40 disposed adjacent to and about the pinion 38.
  • one slider rack 40 is disposed on each opposed side of the pinion 38, with the slider racks 40 simultaneously engaging the pinion 38.
  • the slider racks 40 are ultimately coupled to the connecting rods 24 ( FIG. 1 ) of the coupler-actuator assembly 10.
  • the slider racks 40 each include a connecting rod engagement portion 42 that protrudes from or is enclosed within the housing 12 and is coupled to the corresponding connecting rod 24 via a pin attachment, for example. It will be readily apparent to those of ordinary skill in the art that slightly different gear and component arrangements and configurations can be utilized equally. For example, a linear motor could be utilized, as opposed to a rotational motor, requiring different gear and lever connections to be utilized.
  • a sensor switch 44 is disposed within the housing 12 and coupled to one of the moving components of the actuation mechanism 14, such as one of the slider racks 40.
  • This sensor switch 44 is operable for sensing a degree of movement of the moving component and thereby monitoring an actuation state of the actuation mechanism 14.
  • sensing devices are well known to those of ordinary skill in the art and may include mechanical sensors, near-field electrical sensors, or the like, sensing relative or absolute translational or rotational motion or displacement.
  • the housing 12 again includes an upper housing 12a and a lower housing 12b collectively disposed about the actuation mechanism 14.
  • the coupler-actuator assembly 10 employs a simple DC electric motor 16, completely enclosed within the housing 12 in this case.
  • a worm screw 30 is fixed on the shaft of the motor 16 and rotates when the motor 16 is actuated.
  • the worm screw 30 is coupled to a corresponding worm gear 32 disposed on a shaft disposed substantially perpendicular to the worm screw 30.
  • the worm screw 30 and worm gear 32 effectively decrease the rotational speed increase the torque of the motor 16 available to the actuation mechanism 14.
  • An actuating gear sector 34 is disposed on the same shaft as the worm gear 32.
  • the actuating gear sector 34 is only partially-toothed and performs one rotation per opening cycle. It should be noted that all of the components described herein may be manufactured from any suitable substantially rigid material, such as a metallic material, a plastic material, or the like.
  • the actuating gear sector 34 engages a corresponding receiving gear sector 36 when rotated.
  • the receiving gear sector 36 is also only partially-toothed and is fixed on a common shaft with a synchronizing pinion 38.
  • the receiving gear sector/pinion shaft is disposed substantially parallel to the actuating gear sector/worm gear shaft within the housing 12.
  • the receiving gear sector 36 may be keyed and fitted on a corresponding keyed portion of the pinion 38.
  • the pinion 38 also includes teeth at its center portion that engage corresponding teeth of a pair of slider racks 40 disposed adjacent to and about the pinion 38.
  • one slider rack 40 is disposed on each opposed side of the pinion 38, with the slider racks 40 simultaneously engaging the pinion 38.
  • the slider racks 40 are ultimately coupled to the connecting rods 24 ( FIG. 1 ) of the coupler-actuator assembly 10.
  • the slider racks 40 each include a connecting rod engagement portion 42 that protrudes from or is enclosed within the housing 12 and is coupled to the corresponding connecting rod 24 via a pin attachment, for example. It will be readily apparent to those of ordinary skill in the art that slightly different gear and component arrangements and configurations can be utilized equally. For example, a linear motor could be utilized, as opposed to a rotational motor, requiring different gear and lever connections to be utilized.
  • a sensor switch 42 is again disposed within the housing 12 and coupled to one of the moving components of the actuation mechanism 14, such as one of the slider racks 40.
  • This sensor switch 42 is operable for sensing a degree of movement of the moving component and thereby monitoring an actuation state of the actuation mechanism 14.
  • sensing devices are well known to those of ordinary skill in the art and may include mechanical sensors, near-field electrical sensors, or the like, sensing relative or absolute translational or rotational motion or displacement.
  • FIG. 4 is a partial top planar view of one exemplary embodiment of the coupler-actuator assembly 10 for a powered latch system of the present disclosure, in a first actuated state.
  • the actuation mechanism 14 is in a normal (latched) position with the slider racks 40 extended.
  • the motor 16 ( FIGS. 1-3 ) is not powered up and the sensor switch 44 is in an open state.
  • FIG. 5 is a partial top planar view of one exemplary embodiment of the coupler-actuator assembly 10 for a powered latch system of the present disclosure, in a second actuated state.
  • the motor 16 FIGS. 1-3
  • the actuating gear sector 34 rotates until it engages the receiving gear sector 36.
  • FIG. 6 is a partial top planar view of one exemplary embodiment of the coupler-actuator assembly 10 for a powered latch system of the present disclosure, in a third actuated state.
  • further rotation of the actuating gear sector 34 is accompanied by a rotation of the receiving gear sector 36 (as they are meshed together). That, in turn, causes the pinion 38 ( FIGS. 2 and 3 ) rotation and initiates the slider rack displacements.
  • FIG. 7 is a partial top planar view of one exemplary embodiment of the coupler-actuator assembly 10 for a powered latch system of the present disclosure, in a fourth actuated state.
  • the actuating gear sector 34 disengages from the receiving gear sector 36.
  • the slider racks 40 are now very close to their final, unlatched positions and the sensor switch 44 is about to be closed.
  • FIG. 8 is a partial top planar view of one exemplary embodiment of the coupler-actuator assembly 10 for a powered latch system of the present disclosure, in a fifth actuated state.
  • the receiving gear sector 36 is disengaged from the actuating gear sector 34.
  • the slider racks 40 move the last part of their travel and stop. This movement is helped by a force from the latching assemblies 22 ( FIG. 1 ) settling in their unlatched positions.
  • the sensor switch 44 is now closed and the power to the motor 16 ( FIGS. 1-3 ) is cut.
  • the actuating gear sector 34 now stops. It should be noted that, due to the inertia of the motor 16, the actuating gear sector 34 moves past the point where the power is cut. There is a mechanical position limiter for rotation such that there is no interference with the now free-running receiving gear sector 36. This would prevent the latch assemblies 22 from being extended (i.e., closed) again.
  • the actuating gear sector 34 engages a corresponding receiving gear sector 36 when rotated.
  • the receiving gear sector 36 is also only partially-toothed and is fixed on a common shaft with a synchronizing pinion 38.
  • the receiving gear sector/pinion shaft is disposed substantially parallel to the actuating gear sector/worm gear shaft within the housing 12.
  • the receiving gear sector 36 may be keyed and fitted on a corresponding keyed portion of the pinion 38.
  • the pinion 38 also includes teeth at its center portion that engage corresponding teeth of a pair of slider racks 40 disposed adjacent to and about the pinion 38.
  • one slider rack 40 is disposed on each opposed side of the pinion 38, with the slider racks 40 simultaneously engaging the pinion 38.
  • the slider racks 40 are ultimately coupled to the connecting rods 24 ( FIG. 1 ) of the coupler-actuator assembly 10.
  • the slider racks 40 each include a connecting rod engagement portion 42 that protrudes from or is enclosed within the housing 12 and is coupled to the corresponding connecting rod 24 via a pin attachment, for example. It will be readily apparent to those of ordinary skill in the art that slightly different gear and component arrangements and configurations can be utilized equally. For example, a linear motor could be utilized, as opposed to a rotational motor, requiring different gear and lever connections to be utilized.
  • a sensor switch 44 is disposed within the housing 12 and coupled to one of the moving components of the actuation mechanism 14, such as one of the slider racks 40.
  • This sensor switch 44 is operable for sensing a degree of movement of the moving component and thereby monitoring an actuation state of the actuation mechanism 14.
  • sensing devices are well known to those of ordinary skill in the art and may include mechanical sensors, near-field electrical sensors, or the like, sensing relative or absolute translational or rotational motion or displacement.
  • a stop pawl 100 is used to prevent over-rotation due to inertia or the like, which could block free movement of the slider racks 40. The position of the stop pawl 100 is controlled by a cam slot 102 integrated into the receiving gear sector 36. When the receiving gear sector 36 is in its final position, the stop pawl 100 is engaged to contact a stop rib 104 integrated into the actuating gear sector 34.
  • the housing 12 again includes an upper housing 12a and a lower housing 12b collectively disposed about the actuation mechanism 14.
  • the coupler-actuator assembly 10 employs a simple DC electric motor 16, completely enclosed within the housing 12 in this case.
  • a worm screw 30 is fixed on the shaft of the motor 16 and rotates when the motor 16 is actuated.
  • the worm screw 30 is coupled to a corresponding worm gear 32 disposed on a shaft disposed substantially perpendicular to the worm screw 30.
  • the worm screw 30 and worm gear 32 effectively decrease the rotational speed increase the torque of the motor 16 available to the actuation mechanism 14.
  • An actuating gear sector 34 is disposed on the same shaft as the worm gear 32, which components may be integrally formed.
  • the actuating gear sector 34 is only partially-toothed and performs one rotation per opening cycle. It should be noted that all of the components described herein may be manufactured from any suitable substantially rigid material, such as a metallic material, a plastic material, or the like.
  • the actuating gear sector 34 engages a corresponding receiving gear sector 36 when rotated.
  • the receiving gear sector 36 is also only partially-toothed and is fixed on a common shaft with a synchronizing pinion 38, which components may be integrally formed.
  • the receiving gear sector/pinion shaft is disposed substantially parallel to the actuating gear sector/worm gear shaft within the housing 12.
  • the receiving gear sector 36 may be keyed and fitted on a corresponding keyed portion of the pinion 38.
  • the pinion 38 also includes teeth at its center portion that engage corresponding teeth of a pair of slider racks 40 disposed adjacent to and about the pinion 38.
  • one slider rack 40 is disposed on each opposed side of the pinion 38, with the slider racks 40 simultaneously engaging the pinion 38.
  • the slider racks 40 are ultimately coupled to the connecting rods 24 ( FIG. 1 ) of the coupler-actuator assembly 10.
  • the slider racks 40 each include a connecting rod engagement portion 42 that protrudes from or is enclosed within the housing 12 and is coupled to the corresponding connecting rod 24 via a pin attachment, for example. It will be readily apparent to those of ordinary skill in the art that slightly different gear and component arrangements and configurations can be utilized equally. For example, a linear motor could be utilized, as opposed to a rotational motor, requiring different gear and lever connections to be utilized.
  • a sensor switch 42 is again disposed within the housing 12 and coupled to one of the moving components of the actuation mechanism 14, such as one of the slider racks 40.
  • This sensor switch 42 is operable for sensing a degree of movement of the moving component and thereby monitoring an actuation state of the actuation mechanism 14.
  • sensing devices are well known to those of ordinary skill in the art and may include mechanical sensors, near-field electrical sensors, or the like, sensing relative or absolute translational or rotational motion or displacement.
  • a stop pawl 100 is used to prevent over-rotation due to inertia or the like, which could block free movement of the slider racks 40. The position of the stop pawl 100 is controlled by a cam slot 102 integrated into the receiving gear sector 36. When the receiving gear sector 36 is in its final position, the stop pawl 100 is engaged to contact a stop rib 104 integrated into the actuating gear sector 34.
  • the actuation mechanism 14 starts in a normal (latched) position with the slider racks 40 extended.
  • the motor 16 ( FIGS. 9 and 10 ) is not powered up and the sensor switch 44 is in an open state.
  • the motor 16 is then powered up after a signal from the opening control (i.e., a sensor switch in the handle, push button, knob, or the like).
  • the actuating gear sector 34 rotates until it engages the receiving gear sector 36. Further rotation of the actuating gear sector 34 is accompanied by a rotation of the receiving gear sector 36 (as they are meshed together). That, in turn, causes the pinion 38 ( FIGS. 9 and 10 ) rotation and initiates the slider rack displacements.
  • the actuating gear sector 34 disengages from the receiving gear sector 36.
  • the slider racks 40 are now very close to their final, unlatched positions and the sensor switch 44 is about to be closed.
  • the sensor switch is pressed closed by a cam integrated on the slider rack 40 and the signal is read by the electronic control unit (ECU) and the power to the motor 16 is cut.
  • the sto pawl 100 is rotated by the can slot 102 in such a manner that it moves into the trajectory of the stop rib 104.
  • the receiving gear sector 36 is disengaged from the actuating gear sector 34.
  • the slider racks 40 move the last part of their travel and stop. This movement is helped by a force from the latching assemblies 22 ( FIG.
  • the actuation provided is very fast (below 500 ms) and there is no need for resetting the position of the motor 16 ( FIGS. 1-3 ) or any other components.
  • This system function is more reliable than systems with arbitrary power supply timing. Indirectly, this also provides a minimized packaging volume and a maximized storage compartment volume.
  • FIG. 12 is a perspective view of the coupler-actuator assembly of the present disclosure installed in a hatch lid of a vehicle
  • FIG. 13 is a perspective view of the coupler-actuator assembly of the present disclosure installed in a storage compartment of a vehicle.
  • the storage compartment assembly wherein the coupler-actuator assembly may comprise a pair of connected slider racks, a pair of opposed connecting rods each coupled to a corresponding one of the pair of connected slider racks within the housing, and a pair of opposed latch assemblies each coupled to a corresponding one of the pair of opposed connecting rods outside of the housing.
  • the storage compartment assembly wherein the actuation mechanism may comprise: a worm screw coupled to the motor; a worm gear coupled to the worm screw; an actuating gear sector coupled to the worm gear along a common axis; a receiving gear sector adapted to be coupled to the actuating gear sector; and a synchronizing pinion coupled to the receiving gear sector along another common axis and coupled to the one or more slider racks; wherein rotation of the worm screw by the motor rotates the worm gear about the common axis, which rotates the actuating gear sector about the common axis, which selectively rotates the receiving gear sector about the another common axis, which selectively rotates the synchronizing pinion about the another common axis, which selectively translates the one or more slider racks in a direction into/out of the housing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)

Claims (7)

  1. Ensemble coupleur-actionneur (10) pour un système de verrouillage motorisé d'un couvercle de hayon (18) d'un compartiment de rangement d'un véhicule, l'ensemble coupleur-actionneur comprenant :
    un logement (12) conçu pour être disposé partiellement ou entièrement à l'intérieur du couvercle de hayon ou du compartiment de rangement et accouplé au couvercle de hayon ou au compartiment de rangement ;
    un moteur (16) disposé partiellement ou entièrement à l'intérieur du logement et accouplé à celui-ci ;
    un mécanisme d'actionnement (14) disposé à l'intérieur du logement et accouplé au moteur ; et
    une ou plusieurs crémaillères coulissantes (28) disposées partiellement ou entièrement à l'intérieur du logement et accouplées au mécanisme d'actionnement,
    le mécanisme d'actionnement comprenant :
    une vis sans fin (30) accouplée au moteur ;
    un engrenage à vis sans fin (32) accouplé à la vis sans fin ;
    caractérisé en ce que le mécanisme d'actionnement comprend en outre :
    un secteur d'engrenage d'actionnement (34) accouplé à l'engrenage à vis sans fin le long d'un axe commun ;
    un secteur d'engrenage de réception (36) conçu pour être accouplé au secteur d'engrenage d'actionnement ; et
    un pignon de synchronisation (38) accouplé au secteur d'engrenage de réception (36) le long d'un autre axe commun et accouplé à la ou aux crémaillères coulissantes ;
    la rotation de la vis sans fin (30) par le moteur faisant tourner l'engrenage à vis sans fin (32) autour de l'axe commun, ce qui fait tourner le secteur d'engrenage d'actionnement (34) autour de l'axe commun, ce qui fait tourner sélectivement le secteur d'engrenage de réception (36) autour de l'autre axe commun, ce qui fait tourner sélectivement le pignon de synchronisation (38) autour de l'autre axe commun, ce qui fait tourner sélectivement la ou les crémaillères coulissantes (28) dans une direction vers l'intérieur ou l'extérieur du logement (12).
  2. Ensemble coupleur-actionneur selon la revendication 1, comprenant en outre une ou plusieurs tiges de liaison (24) disposées à l'extérieur ou partiellement à l'intérieur du logement et accouplées à la ou aux crémaillères coulissantes, la ou les tiges de liaison (24) étant conçues pour être disposées adjacentes au couvercle de hayon ou au compartiment de rangement ou partiellement ou totalement à l'intérieur du couvercle de hayon ou du compartiment de rangement.
  3. Ensemble coupleur-actionneur selon la revendication 2, comprenant en outre un ou plusieurs ensembles de verrouillage (22) disposés à l'extérieur du logement (12) et accouplés à la ou aux tiges de liaison (24),
    le ou les ensembles de verrouillage étant conçus pour être disposés adjacents au couvercle de hayon ou au compartiment de rangement ou partiellement ou entièrement à l'intérieur du couvercle de hayon ou du compartiment de rangement et accouplés au couvercle de hayon ou au compartiment de rangement, et, lorsqu'ils sont actionnés, le ou les ensembles de verrouillage étant conçus pour libérer le couvercle de hayon du compartiment de rangement/fixer le couvercle de hayon au compartiment de rangement.
  4. Ensemble coupleur-actionneur selon la revendication 3, l'ensemble coupleur-actionneur comprenant une paire de crémaillères coulissantes (28) reliées, une paire de tiges de liaison opposées accouplées chacune à une crémaillère correspondante de la paire de crémaillères coulissantes (28) reliées à l'intérieur du logement (12), et une paire d'ensembles de verrouillage opposés accouplés chacun à une tige correspondante de la paire de tiges de liaison (24) opposées à l'extérieur du logement (12).
  5. Ensemble coupleur-actionneur selon la revendication 1, comprenant en outre un capteur disposé à l'intérieur du logement (12) et permettant de détecter un état d'actionnement du mécanisme d'actionnement.
  6. Ensemble couvercle de hayon pour un compartiment de rangement d'un véhicule, l'ensemble couvercle de hayon comprenant :
    un couvercle de hayon ; et
    un ensemble coupleur-actionneur selon l'une quelconque des revendications précédentes.
  7. Ensemble compartiment de rangement pour véhicule, l'ensemble compartiment de rangement comprenant :
    un compartiment de rangement (20) ;
    un couvercle de hayon accouplé pivotant ou amovible au compartiment de rangement ; et
    un ensemble coupleur-actionneur selon l'une quelconque des revendications 1 à 5.
EP20164900.1A 2019-04-23 2020-03-23 Ensemble coupleur-actionneur pour un système de verrouillage motorisé Active EP3730727B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962837228P 2019-04-23 2019-04-23
US16/693,480 US11668119B2 (en) 2019-04-23 2019-11-25 Coupler-actuator assembly for a powered latch system

Publications (2)

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EP3730727A1 EP3730727A1 (fr) 2020-10-28
EP3730727B1 true EP3730727B1 (fr) 2025-09-24

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US (1) US11668119B2 (fr)
EP (1) EP3730727B1 (fr)
CN (1) CN111827807B (fr)

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Also Published As

Publication number Publication date
CN111827807A (zh) 2020-10-27
CN111827807B (zh) 2022-04-26
EP3730727A1 (fr) 2020-10-28
US11668119B2 (en) 2023-06-06
US20200340276A1 (en) 2020-10-29

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